ΔS Is Positive for the Reaction ________

question 65

Multiple Choice

ΔS is positive for the reaction ________.

• A)Pb(NO₃)₂ (aq)+ 2KI(aq)→ PbI₂ (s)+ 2KNO₃ (aq)
• B)2H₂O (g)→ 2H₂ (g)+ O₂ (g)
• C)H₂O (g)→ H₂O (s)
• D)NO (g)+ O₂ (g)→ NO₂ (g)
• E)Ag⁺ (aq)+ Cl^- (aq)→ AgCl (s)

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Definitions:

HOMO

The Highest Occupied Molecular Orbital, referring to the molecular orbital that contains the highest energy electrons in a molecule.

LUMO

Lowest Unoccupied Molecular Orbital, the lowest energy orbital that can accept an electron.

Hybridization

A concept in chemistry that describes the mixing of atomic orbitals to form new hybrid orbitals that can accommodate the pairing of electrons to form bonds.

Central Carbon

The carbon atom in an organic molecule that is bonded to four different groups, making it a chiral or stereo center.